Apparatus for charging shaft-furnaces



P. ZENDER.

APPARATUS FOR CHARGING SHAFT FURNACES.

APPLICATION FILED JULY 5, 191a.

L393,4-80. Patented Oct. 11mm 5 SHEETS-SHEET 1.

- P. ZENDER.

APPARATUS FOR CHARGING SHAFT FURNACES- 7 APPLICATION FILED JULY 5, 918- 1,393,480. a Patentedl. Oct 11, 1921...

5 SHEETSSHEET 2.

P. ZENDER.

APPARATUS FOR CHARGING SHAFT FURNACES.

APPLICATION FILED JULY 5,1918.

1,393,480., Patented Oct. 111, 11921 5 $HEETSSHEET 3- P. ZENDER.

APPARATUS FOR CHARGING SHAFT FURNACES.

APPLICATION man JULY 5. 191a.

Patented Oct; 11, 1921..

5 SHEETS-SHEET 4.

P. ZENDER.

APPARATUS FOR CHARGING SHAFT FURNACES.

APPLICATION FILED JULY 5, 1918.

1,393,480; Patented Oct. 11, 1921.

s SHEETS-SHEET 5.

rinitiin znivnnit, or Luxur es RdrrbLLE LUXEMBfiRG ASSIGNOR ll-oi PAUL X wiinrrna ,COMPAGNIE (SOCIETE EN GOMMANDITE ran. ACTIONS), or LUXEM- runencoLnnnrcmsaaivn nectar or nnxn anune. 1

v fjarraaarusron oiraaeme s iarrerunnacns. i i

Application filed 5,

. Td ZZ Mama: mayconcem.-; 1

Be it" known-that gram ZENDItR, a

subject of the Grand Duchy of Luxemburg,

residing at Rue Wedel, LuXemburg-Hoh lerich, in the Granol'DuchylofLuxemburg, have invented certain newanduseful I -mprovements-tin Apparatus for fiCharging Shaft Furnaces,- of which the following is a specificationi v 9 It is well-known that in order to econo mize, as far as possible motivepower it is desirable to balance the ascending and' the descending dead weights, and""'various attempts have j-been' made to solve this prob 1cm in connection with the various types of charge elevating apparatus.

The object of thepresentinvention is to deal with this problem in'the-particular case in which the material carried by the bucket or grab has to be moved successively along paths of different inclinations, for instancea vertical path followed by a horizontal path or by an inclined path, Such conditions occur for instance in connection with transport taklng thecharging of high furnaces.

The invention may be said to consist essentially in coupling the cars from which the 'two charge receptacles are suspended during the vertical transport of the charges in such a manner that the dead weight of the ascending charge vessel, bucket or grab is balanced by the dead weight of the descend ing vessel, and in uncoupling or disconnecting the two cars after the completion ofthe hoisting operation so that the two cars may be moved independently during the subsequent horizontal trans ort.

H The advantages 0 the invention are mainly the following, owing to the two cars being coupled to form a single hoisting apparatus during the period of vertical trans port, the dead weights of the two vessels containing the charge are fullybalanced,

which results in a saving of motor power amounting to from 25% to Moreover as the empty andthe full vessel are moved simultaneously the time required for the vertical transport may be reduced by 50%. During the vertical transport the elevating motors of the cars are coupled and work simultaneously, therefore each motor will i work as if under half load. Each of the motors should however be sufficiently power- 111 for raising the charge vessel and the 191a Serial no. 243,325.

charge contained therein so that whenever one of) the cars requires to be repaired, the

chargeis considerably reduced. The costof the whole charging plant is considerably less than in other installations in which buckets or grabs areused. The accompanyother car'may beused for charging both ingdrawings show three arrangements according to-the invention. Figures 1 and 2 are diagrammatic vertical section and a plan of arrangement in whcih the two horizontal pathsare in one line, the hoisting operation taking place in a plane passing through the vertical axes of the two high furnaces.

Figs. 3 and 4 are similar views of an arrangement inwhich the horizontal paths of the cars are at an angle, the vertical place outside the plane passing through the centers of the furnaces.

Figs. 5 and 6 illustrate an arrangement in which there is only one high furnace.

In Figs. 1, to 4 the cars are designated by the letters (a) and (b), the tracks along which the cars run are indicated by the letters (c), (d). (e) represents the ascending bucket or other receptacle containing the useful charge or load, (f) indicates the descending empty bucket, (g) are the ropes or cables,and(lc) represents diagrammatically the coupling members of the drum shafts.

In the two arrangements shown in Figs. 1, 2 and 3 4, respectively the operation is as follows: After the bucket (e) has been charged at the bottom of the shaft or the usual charging point, the car (6) with its empty bucket (f), is coupled to the car (a) in such amanner that the two drum shafts of the cars are connected. The elevating motors are then put into action and the vessel (e) is raised while the vessel (f). is simultaneously lowered. After the completion of the vertical transport the motors are stopped and the cars are uncou led. The car (a) with the loaded vessel (6 be moved freelytoward the discharge point along the track (a) by the motor provided tionwith'a single high furnace but in such f aicase the dead weight of the-charge vessel instead of being balanced by the weight of another charge vessel, is balanced by a coun- .ter weight; which is eoupledto the car in a similar -manner as if in the previous cases. Such arrangement is shown in F1gs. 5

and 6"in 'which the letters indicate similar parts as in the previous figures'except that th letter (f) indicates a gcounterweight, while the letter (Z representsa stationary hoisting apparatus or drum.

1'. The combination With two independently transportable-hoistingdrums, a charge vessel suspendedfrom each -drum,- a separate driving shaft for each drum,-and coupling members for connecting said shafts when-thedr'ums are brought together, whereby the weights ofthevessels are balanced duringthe raisingand lowering thereof. a 2. An apparatus --for charging shaftfurnaces comprising a car, a charge vessel suspended from said car, means for hoisting and lowering'sald charge vessel mounted on'said car,- and means for coupling the hoisting apparatus of the car to a counterweight during the holsting operatlon and uncoupling the said hoisting apparatus from the counter-Weight during the horizontal movement of the car.

3. A car for charging high furnaces comprising in combination a hoisting drum, a charge vessel suspended from said hoisting drum, ;means for operating the drum, and means for couplin and'uncoupling the shaft of the drum tot 1e shaft of" anotherdrum carrying a counter-weight.

4. The combination withtwo shaft furnaces, of a car for each furnace, movable to and'from the latter, a hoisting drum on each car, a charging vessel suspended from each drum, a driving shaft for each drum, and means for coupling the drum shafts together during the 0136111131011 of the drums, whereby the weights of the' vessels are balanced during the raising and lowering thereof.

\ PIERRE ZENDER.

Witnesses:

EMMANUEL SEnvAIs, J ULEs-KoHN. 

